(38+/59-f)+15)=75 (59-1)+15)=75-38 (59-f)+15)=37 (59-1)= =(1-65) f= f= 138+(39-

Решим уравнение поэтапно:

1. $$ (38 + (59 - f) + 15) = 75 $$
2. $$ (59 - f) + 15 = 75 - 38 $$
3. $$ (59 - f) + 15 = 37 $$
4. $$ 59 - f = 37 - 15 $$
5. $$ 59 - f = 22 $$
6. $$ f = 59 - 22 $$
7. $$ f = 37 $$

Ответ: f = 37